Improvement in drying-machines



UNITED "STATES PATENT OFFICE.

BENJAMIN J. TAYMAN, OFPHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN DRYING-MACHINES.

Specification forming part of Letters Patent No. 154,930, dated September 8, 1874; application filed July 25, 1874.

To all whom it may concern:

Be it known that I, BENJAMIN J. TAYMAN, of Philadelphia, Pennsylvania, have invented an Improvement in Drying-Machines, of which the following is a specification:

The apparatus herein described is applicable for drying malt, also the residual grains from breweries, distilleries, and starch factories, also wheat and other grains, and also sand and all granular substances which it is desired to dry economically and quickly.

In the drawings, Figure 1 is a front, and Fig. 2 a rear, elevation of said apparatus. Fig. 3 is a longitudinal section through the middle, and Fig. 4. a plan, of the apparatus. Fig. 5 is a detached sectional view of a fanblower and smoke-stack, also of the pipe connecting the fan andstack, and also of part of the hot-air-distributing pipes.

In Fig. 3, a is a central shaft supported by and revolving in boxes set in the walls 1. From hubs formed on shaft or. there project several rods or arms, b, which form supports for several truncated-cone or pyramid shaped chambers, c, d, e, and f. These chambers form a continuous co-operative series, the central chamber, 0, being inclosed by the chamber d, which extends a little beyond the larger end of the chamber 0, as shown, the chamber 01 being inclosed by the chamber 6, which in like manner extends a little beyond the larger end of chamber e, as shown, the chamber e being inclosed by the chamber f, which also extends in like manner a little beyond the larger end of chamber 6, as shown. The

' spaces between the chambers are open at the ends of the chambers, and each of the chambers d, e, and f is provided with a flange or ring-shaped guard, g, for directing the grains, &c., as they pass from one chamber into the chamber next in the series. 11. is an ordinary screw-conveyer, placed within the innermost chamber 0. The conveyer It has its bearings in stirrups t and j, suspended from the shaft a. The conveyer It carries at one end the cog-wheel k, which gears with the cog-wheel m on. shaft a. The stirrups i and j fit the shaft a loosely, and the weight of the conveyer tends to keep them in a vertical position when the shaft a turns. The conveyer h is arranged in close proximity to the lower side of the chamber 0, to facilitate the forwarding of the grains, &c., when they are introduced in a very wet state. a and 0, Figs. 2 and 3, are gear-wheels, by which power is applied to the shaft a. In Figs. 1 and 3, p is the hopper, and q is the exit-spout. 1", Figs. 1, 2, and 4., represents the walls inclosing the said apparatus, said walls being intended to be located near the smoke stack 8 belonging to any breweryor other place where drying apparatus may be required. t is an ordinary fanblower, connected with the smoke-stack s by a flue or pipe, at, and also with fines or pipes 22, Figs.4 and 5, for conveying and distributing the hot air drawn from the stack to the several chambers c, (l, e, and f. The pipes or flues o are built in or extend. along the walls 1' to convey the hot air as directly as may be to the open ends of the several chambers, branch pipes or flues w being located opposite said open ends respectively. The pipes w'are intended to be provided with dampers (not shown) for regulating the ingress of the heated air.

I prefer to construct the chamber 00f sheetiron, perforated, or of heavy wire-cloththe chambers d and e of solid sheet-iron. The chamber f may be of solid or perforated sheetiron, or of heavy wire-cloth.

I do not wish to be restricted to the employment of four chambers, as two or three chambers may be employed in some cases advantageously; or a greater number than four may be employed, if desired, preserving the structure and arrangement on a common central shaft, as described.

Power being applied to the shaft a, the united chambers 12 c d 0 receive a rotary motion, the fan-blower is started, and the hot air is forced into the chambers. The grains, 850., intended to be dried are fed into the hopper p, and pass thence into the innermost chamber c, and are assisted forward in their passage down the lower inclined side of the chamber c by the conveyor h, and they passfrom chamber'c down the inclined side of this chamber into the chamber (1; thence down the lower or inclined side of this chamber into the chamber 0; thence in like manner into the ends, the chambers d, e, and f, respectively, being provided with flanges or guards g at their smaller ends, in combination with the conveyer h, suspended'by stirrups from the shaft a within the innermost chamber, in the manner and for the purpose substantially as set forth.

BENJAMIN J. TAYMAN.

Witnesses: v

Tnos. A. BURTT, V J. E. SHAW. 

